631516086 has 24 divisors (see below), whose sum is σ = 1376200800. Its totient is φ = 209287536.

The previous prime is 631516073. The next prime is 631516099. The reversal of 631516086 is 680615136.

It is a happy number.

631516086 is a `hidden beast` number, since 63 + 1 + 516 + 0 + 86 = 666.

631516086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (631516073) and next prime (631516099).

It is a self number, because there is not a number n which added to its sum of digits gives 631516086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98286 + ... + 104513.

It is an arithmetic number, because the mean of its divisors is an integer number (57341700).

Almost surely, 2^631516086 is an apocalyptic number.

631516086 is an abundant number, since it is smaller than the sum of its proper divisors (744684714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631516086 is a wasteful number, since it uses less digits than its factorization.

631516086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202980 (or 202977 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 631516086 is about 25129.9838042128. The cubic root of 631516086 is about 857.9490001799.

The spelling of 631516086 in words is "six hundred thirty-one million, five hundred sixteen thousand, eighty-six".